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misc_exporter_draco.html
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misc_exporter_draco.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - exporter - draco</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - exporter - draco
</div>
<script src="jsm/libs/draco/draco_encoder.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { DRACOExporter } from 'three/addons/exporters/DRACOExporter.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
let scene, camera, renderer, exporter, mesh;
const params = {
export: exportFile
};
init();
function init() {
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 100 );
camera.position.set( 4, 2, 4 );
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xa0a0a0 );
scene.fog = new THREE.Fog( 0xa0a0a0, 4, 20 );
exporter = new DRACOExporter();
//
const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x444444, 3 );
hemiLight.position.set( 0, 20, 0 );
scene.add( hemiLight );
const directionalLight = new THREE.DirectionalLight( 0xffffff, 3 );
directionalLight.position.set( 0, 20, 10 );
directionalLight.castShadow = true;
directionalLight.shadow.camera.top = 2;
directionalLight.shadow.camera.bottom = - 2;
directionalLight.shadow.camera.left = - 2;
directionalLight.shadow.camera.right = 2;
scene.add( directionalLight );
// ground
const ground = new THREE.Mesh( new THREE.PlaneGeometry( 40, 40 ), new THREE.MeshPhongMaterial( { color: 0xbbbbbb, depthWrite: false } ) );
ground.rotation.x = - Math.PI / 2;
ground.receiveShadow = true;
scene.add( ground );
const grid = new THREE.GridHelper( 40, 20, 0x000000, 0x000000 );
grid.material.opacity = 0.2;
grid.material.transparent = true;
scene.add( grid );
// export mesh
const geometry = new THREE.TorusKnotGeometry( 0.75, 0.2, 200, 30 );
const material = new THREE.MeshPhongMaterial( { color: 0x00ff00 } );
mesh = new THREE.Mesh( geometry, material );
mesh.castShadow = true;
mesh.position.y = 1.5;
scene.add( mesh );
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
renderer.shadowMap.enabled = true;
document.body.appendChild( renderer.domElement );
//
const controls = new OrbitControls( camera, renderer.domElement );
controls.target.set( 0, 1.5, 0 );
controls.update();
//
window.addEventListener( 'resize', onWindowResize );
const gui = new GUI();
gui.add( params, 'export' ).name( 'Export DRC' );
gui.open();
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
renderer.render( scene, camera );
}
function exportFile() {
const result = exporter.parse( mesh );
saveArrayBuffer( result, 'file.drc' );
}
const link = document.createElement( 'a' );
link.style.display = 'none';
document.body.appendChild( link );
function save( blob, filename ) {
link.href = URL.createObjectURL( blob );
link.download = filename;
link.click();
}
function saveArrayBuffer( buffer, filename ) {
save( new Blob( [ buffer ], { type: 'application/octet-stream' } ), filename );
}
</script>
</body>
</html>